用所给动词的适当形式填空。

1. Chinese people don't think it proper to make noise while         (eat) noodles.

2. My host family go out of their way_________ (make) me feel at home.

3. I am very comfortable       (speak) English now.

4. I am gradually getting______ (use) to the western food.

5. Theory should be       (combine) with practice.

根据汉语意思，完成句子。

1. 学生们在干什么？

    What ____________ the students ____________?

2. 李刚的妈妈正在做饭。

    Li Gang's mother ____________ ____________.

3. 我正在通过收音机学英语。

    I ____________ ____________ English on the ____________.

4. 孩子们正在操场上打篮球。

    The children ____________ ____________ ____________ in the playground.

5. 南西正在看一部美国电影。

    Nancy ____________ ____________ an American film.